网口通迅啊，你的意思是通过网络和别的计算机通信吗？如果是的话那就是socket通信了，我给你个例子看看
服务器端：
try
{
int port = 2000;
string host = 176.64.158.112;
IPAddress ip = IPAddress.Parse(host);
IPEndPoint ipe = new IPEndPoint(ip, port);
s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个Socket类
s.Bind(ipe);//绑定2000端口
s.Listen(0);//开始监听
ShowMessage(Waitforconnect);
while (true)
{
Socket temp = s.Accept();//为新建连接创建新的Socket。
ShowMessage(Getaconnect from + temp); //this.Invoke(new ShowMes(ShowMessage), Getaconnect);
string recvStr = ;
byte[] recvBytes = new byte[1024];
int bytes;
bytes = temp.Receive(recvBytes, recvBytes.Length, 0);//从客户端接受信息
recvStr = Encoding.ASCII.GetString(recvBytes, 0, bytes);
ShowMessage(String.Format(ServerGetMessage:{0}, recvStr));//this.Invoke(new ShowMes(ShowMessage), String.Format(ServerGetMessage:{0}, recvStr)); //把客户端传来的信息显示出来
string sendStr = Ok!ClientSendMessageSucessful!;
byte[] bs = Encoding.ASCII.GetBytes (sendStr);
temp.Send(bs, bs.Length, 0);//返回客户端成功信息
}
//temp.Close();
//s.Close();
}
catch (ArgumentNullException e)
{
ShowMessage(String.Format(ArgumentNullException:{0}, e));
}
catch (SocketException e)
{
ShowMessage(String.Format(SocketException:{0}, e));
}
Console.WriteLine(PressEntertoExit);
客户端：
try
{
Socket c;
int port = 2000;
string host = 176.64.158.112;
IPAddress ip = IPAddress.Parse(host);
IPEndPoint ipe = new IPEndPoint(ip, port);//把ip和端口转化为IPEndPoint实例
c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个Socket
ShowMessage(Conneting...);
c.Connect(ipe);//连接到服务器
string sendStr = hello!This is a socket test;
byte[] bs = Encoding.ASCII.GetBytes(sendStr);
ShowMessage(SendMessage);
c.Send(bs, bs.Length, 0);//发送测试信息
string recvStr = ;
byte[] recvBytes = new byte[1024];
int bytes;
bytes = c.Receive(recvBytes, recvBytes.Length, 0);//从服务器端接受返回信息
if (bytes <= 0)
break;
recvStr = Encoding.ASCII.GetString(recvBytes, 0, bytes);
ShowMessage(String.Format(ClientGetMessage:{0}, recvStr));//显示服务器返回信息
sendStr = hello!This is a socket test;
bs = Encoding.ASCII.GetBytes(sendStr);
ShowMessage(SendMessage);
c.Send(bs, bs.Length, 0);//发送测试信息
Thread.Sleep(100);
c.Close();
}
catch (ArgumentNullException e)
{
ShowMessage(String.Format(ArgumentNullException:{0}, e));
}
catch (SocketException e)
{
ShowMessage(String.Format(SocketException:{0}, e));
}
ShowMessage(String.Format(PressEntertoExit));
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